Correction

Published: January 27, 2008

An article on Jan. 13 about the conquest of Mount Everest by Sir Edmund Hillary, who died Jan. 11, and the explorations of space that followed it rendered incorrectly the initial report of trouble aboard the lunar mission Apollo 13. In a recording made available by NASA's Johnson Space Center, the astronaut John Swigert Jr. alerts mission headquarters to the explosion in the rear of the spacecraft with the words, ''O.K., Houston, we've had a problem here,'' not ''Houston, we've got a problem.'' (About 15 seconds later, after Houston asked for the message to be repeated, another astronaut, the mission commander, James Lovell, confirms: ''Uh, Houston, we've had a problem.'')